Win32/Kryptik.GYWN

Written by Robert Bailey

What is Win32/Kryptik.GYWN infection?

In this post you will discover concerning the interpretation of Win32/Kryptik.GYWN and its unfavorable effect on your computer system. Such ransomware are a type of malware that is clarified by online frauds to demand paying the ransom by a victim.

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In the majority of the situations, Win32/Kryptik.GYWN virus will advise its sufferers to initiate funds transfer for the function of neutralizing the modifications that the Trojan infection has actually introduced to the victim’s gadget.

Win32/Kryptik.GYWN Summary

These adjustments can be as follows:

  • Executable code extraction;
  • Attempts to connect to a dead IP:Port (2 unique times);
  • Creates RWX memory;
  • A process attempted to delay the analysis task.;
  • A process created a hidden window;
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • Attempts to repeatedly call a single API many times in order to delay analysis time;
  • Exhibits possible ransomware file modification behavior;
  • Anomalous binary characteristics;
  • Ciphering the papers located on the target’s hard disk — so the target can no longer utilize the data;
  • Preventing normal accessibility to the sufferer’s workstation;

Win32/Kryptik.GYWN

The most normal channels through which Win32/Kryptik.GYWN Trojans are infused are:

  • By ways of phishing emails;
  • As a consequence of individual ending up on a resource that hosts a malicious software application;

As quickly as the Trojan is efficiently infused, it will either cipher the data on the victim’s PC or avoid the tool from functioning in a proper manner – while additionally positioning a ransom money note that states the requirement for the sufferers to impact the settlement for the purpose of decrypting the files or restoring the data system back to the initial problem. In many instances, the ransom money note will certainly come up when the client restarts the COMPUTER after the system has currently been harmed.

Win32/Kryptik.GYWN distribution networks.

In different edges of the globe, Win32/Kryptik.GYWN expands by jumps and bounds. Nonetheless, the ransom notes as well as techniques of extorting the ransom money quantity may differ relying on specific neighborhood (local) settings. The ransom notes and methods of obtaining the ransom quantity might vary depending on certain neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty alerts regarding unlicensed software.

    In specific areas, the Trojans commonly wrongfully report having discovered some unlicensed applications enabled on the victim’s tool. The alert then requires the user to pay the ransom.

    Faulty declarations regarding prohibited web content.

    In countries where software application piracy is less prominent, this approach is not as reliable for the cyber scams. Conversely, the Win32/Kryptik.GYWN popup alert may incorrectly claim to be originating from a police establishment and also will certainly report having located child porn or other unlawful information on the tool.

    Win32/Kryptik.GYWN popup alert may incorrectly claim to be deriving from a legislation enforcement organization and also will certainly report having located youngster porn or other illegal data on the tool. The alert will in a similar way include a demand for the user to pay the ransom.

Technical details

File Info:

crc32: 433A57A0
md5: e3648731a36105980f5fae6b4afe614b
name: officeupd.fft
sha1: 85db743d14fbd83f893ec34dbdf57d0344e16156
sha256: 877c735650488f81807239a0ca564c8faa660a8c9141a9aba2049b9fe1d5b2fb
sha512: dcf4742b7c059f4580d9bbee1c5e444eb37bc1ab4c183bb7697ac33cc8d74a2d2ad9016ba1dc6429deb31d7fc1cd101d3544806411682d49147b4fc08b0eea2f
ssdeep: 12288:3qhfOhBJUmIa4cQ5VSdQpRSZZLPwPqnk7HLhPQ9dLz6D:I9dXrEEw/PwP4k71I9dLz6D
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GYWN also known as:

McAfee Artemis!E3648731A361
Malwarebytes Trojan.Injector
AegisLab Trojan.Win32.Malicious.4!c
Cybereason malicious.d14fbd
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.GYWN
APEX Malicious
Kaspersky Trojan-Ransom.Win32.Agent.avzu
Rising Trojan.Generic@ML.93 (RDMK:rUN0MZOa0Bol/tTHexDcew)
Sophos Mal/Generic-S
DrWeb Trojan.Encoder.30215
Invincea heuristic
McAfee-GW-Edition BehavesLike.Win32.Generic.tt
Trapmine malicious.high.ml.score
FireEye Generic.mg.e3648731a3610598
Ikarus Trojan.Win32.Inject
Webroot W32.Adware.Gen
Endgame malicious (high confidence)
ZoneAlarm Trojan-Ransom.Win32.Agent.avzu
Microsoft Trojan:Win32/Fuerboos.C!cl
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.32515.fvW@a0xk7!di
SentinelOne DFI – Malicious PE
AVG FileRepMalware
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 HEUR/QVM19.1.81F7.Malware.Gen

How to remove Win32/Kryptik.GYWN virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the install-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Win32/Kryptik.GYWN files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

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If the guide doesn’t help you to remove Win32/Kryptik.GYWN you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: http://gridinsoft.com/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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